She had （）suffering from a bad cold when she took the exam.
A、
was
B、
be
C、
been
D、
were
【正确答案】：C
【题目解析】：
句意：她在考试之前一直患重感冒。过去完成进行时是由"had been +现在分词"构成，故选C
She had （）suffering from a bad cold when she took the exam.
She had （）suffering from a bad cold when she took the exam.
was
be
been
were
句意：她在考试之前一直患重感冒。过去完成进行时是由"had been +现在分词"构成，故选C